baber/WOPTO huggingface dataset:
Patent CA-2006491-A1 (CA)
IPC: B21B37/00
Filed: 1989-12-22
Abstract: An   improved   plate   flatness   control   method adapted to effect a control so that plate flatness of a rolled  material  is  optimum  by  adjusting  manipulated variables   is   disclosed.      In  determining  correction quantities  of   the  manipulated  variables,   under  the constraint that upper and lower limits exist in at least one  of  the  manipulated  variables  and  the  correction quantities,  a  weighted  square  sum  of  deviations of  a plate flatness distribution in the width direction of the rolled  material  is taken  as  an  objective  function  to determine,  using  a  non-linear  programming,   correction quantities   of   the   manipulated   variables   where   the objective  function becomes  minimum,  to  thus  control  the plate flatness of the rolled material on the basis of the determined   correction   quantities of   the   manipulated variables.
Patent CA-2006886-A1 (CA)
Title: Method and apparatus for reading or writing on tape using a servo positioned multiple channel head
Inventor: YOUNGQUIST ROBERT J
IPC: G11B5/55
Filed: 1989-12-29
Abstract: ABSTRACT OF THE DISCLOSURE Disclosed is a method for reading or writing data on a tape which has a plurality of data tracks and at least a first dedicated servo track. A multiple channel head with at least three channels, each having at least one element for reading or writing, is used to access the tracks on the tape. The head is moved proximate one of a plurality of predetermined positions. The channels are located so that, in any one predetermined position of the head, one channel accesses the center of a dedicated servo track on the tape and at least two other channels will access the center of distinct data tracks. Depending on the predetermined position of the head, different channels will access a dedicated servo track. The position information on a dedicated servo track is used to move the head to one of the predetermined positions once the head has been moved proximate that predetermined position.   4:1.5
Patent CA-2008192-A1 (CA)
Inventor: GONZALEZ RAUL A
IPC: C01G23/07
Filed: 1990-01-19
Abstract: In the process for producing titanium dioxide by (a)  reacting titanium tetrachloride and oxygen in the vapor phase to produce titanium dioxide, and (b)  subsequently cooling the titanium dioxide in a flue, an improvement comprising utilizing for all or a portion of the flue a conduit having a plurality of internal, substantially longitudinal protuberances, depressions or both.
Patent CA-2009678-A1 (CA)
Title: Pyridazinone, oxadiazinone, thiadiazinone and triazinone cardiotonic agents
Inventor: HAIKALA HEIMO OLAVI
IPC: A61P9/08
Filed: 1990-02-09
Abstract: Disclosed are new heterocyclic compounds of formula I:                    (see fig. I) in which Het represents one of the following groups;  (see fig. II)  or    (see fig. III)    or  (see fig. IV) wherein R11,  R13 and R14 independently represents hydrogen or lower alkyl, Z represents S, O or NH; A represents a valency bond, -CH=CH- or -CH2-CH2-; R1 and R2 independently represents nitro, cyano, halogen, amino, carboxamido, aryl, aroyl, pyridyl, alkoxycarbonyl, acyl or one of following groups;      (see fig. V)    or  (see fig. VI)   or -COCH2COOR8 wherein R6 represents hydrogen or lower alkyl, R8 represents lower alkyl,  R7 represents cyano or COOR10,  R10 being hydrogen or a lower alkyl; or R1 and R2 together form a substituted or unsubstituted 5 or 6 membered ring which may contain 1 or 2 heteroatom N; R3,  R4,  and R5 represents independently hydrogen,  hydroxy or lower alkyl and Y represents N or CH.  These compounds may be used in the treatment of congestive heart failure.
Patent CA-2011908-A1 (CA)
Title: Container and pump assembly
Inventor: ELLISON GARRY L
IPC: B05B9/08
Filed: 1990-03-09
Abstract: ABSTRACT          A manual pump for pressurizing a closed tank.  The pump has a unitary handle, piston rod, valve seat, and split disc air release.  An "O" ring is positioned between the valve seat and the split disc air release.  A pump cylinder is disposed in the top of the tank and the unitary member is in the cylinder with the handle extending above the top. A piston rod sleeve closes the top of the pump cylinder and provides a stabilizing guide surface for the piston rod as it is moved in and out in the pump cylinder.  On the compression stroke of the piston rod, the resilient "O" ring contacts the valve seat sealing the pump cylinder.  On the return stroke, the "O" ring contacts the split disc and allows air to enter the pump cylinder through the split disc .          An improved garden-type or utility sprayer is also disclosed incorporating the pump into a portable tank adapted to contain a liquid to be dispensed.
Patent CA-2014596-A1 (CA)
Title: Fishing rod holder
Inventor: LENNOX JEFFREY K
IPC: A01K97/10
Filed: 1990-04-12
Abstract: ABSTRACT     A fishing rod holder is disclosed which is suitable for a fishing rod having a handle, a staff and a line.  The holder has an elongate base for resting in a stable manner on a flat supporting surface.  The base has a front end and a rear portion.  There are means for firmly and releasably holding the handle portion of the fishing rod mounted on the rear portion of the base.  The handle of the fishing rod is supported at an acute angle to the supporting surface.  The base extends for a substantial distance from the forwardmost point of engagement of the holding means with the handle held therein.
Patent CA-2020640-A1 (CA)
Title: Process for the preparation of cycloolefin polymers
Inventor: BREKNER MICHAEL-JOACHIM
IPC: C08F210/00
Filed: 1990-07-06
Abstract: Polymers of polycyclic olefins of the formulae I to IV having a viscosity number greater than 20 cm3/g and a glass transition temperature above 100°C are obtained without ring opening at a high polymerization rate and at polymerization temperatures advantageous from the technical point of view by means of a catalyst which is composed of a stereo-rigid chiral metallocene compound of groups IVb to VIb of the Periodic Table of the Elements and an aluminoxane. (see formula I, II, III, IV)
Patent CA-2022433-A1 (CA)
Inventor: MCCARTNEY CLIFFORD A
IPC: F16B13/02
Filed: 1990-08-01
Abstract: A dynamic earth anchor comprises a plastic sleeve for insertion into a borehole formed therefor in a terrestrial formation, and a rock bolt for insertion into the sleeve, for stabilizing the formation.  The sleeve is a hollow body having a conformation which facilitates either its installation into the borehole, or the insertion of the rock bolt thereinto.  Additionally, in at least one embodiment thereof, the conformation of the sleeve accommodates for the flow of a fluid, such as a grout, along its outer surface.  In another embodiment, the conformation of the sleeve is such as to provide for the rupture of a grout cartridge installed in the borehole in advance of the sleeve.
Patent CA-2022476-A1 (CA)
Title: Improved bridge design for tamper evident closures
Inventor: CONARD WILLIAM A
IPC: B65D51/00
Filed: 1990-08-01
Abstract: A device for forming a closure, including first and second dies for cooperatively forming the closure. The dies come into mutual contact against both sides of an annular disc. The dies form a center hole and cooperatively operate to form a shoulder and skirt on the outer part of the closure. The annular center section and bridges are formed by action of a plurality of die stems which form a recessed dependent lip on the shoulder and which form frangible bridges connecting the lip to the central section.
Patent CA-2022768-A1 (CA)
Title: Process for manufacturing a ceramic foam body
Inventor: GABATHULER JEAN-PIERRE
IPC: B28B7/34
Filed: 1990-08-07
Abstract: Abstract The process for manufacturing an open pore foam body (10) with three dimensional ceramic network (24), in particular as a filter for the treatment of hot gases or as a catalyst substrate, has as its starting material a block of open pore plastic foam (36). This is impregnated at least once with a ceramic suspension, freed of excess ceramic suspension and heated to a temperature below the melting point of the plastic, then finally burnt off at a temperature at which the ceramic sinters together.            At least one plastic foam layer (28,38,44,46) is impregnated, assembled into a plastic foam block (36) with flow channels (14,20) between two layers and sintered to form a Z-flow filter.     (figure 1)
Patent CA-2023349-A1 (CA)
Title: Agents for the treatment of conditions of heavy pain and processes for preparing said agents
Inventor: LOHNER MANFRED
IPC: A61K9/64
Filed: 1990-08-15
Abstract: AGENTS FOR THE TREATMENT OF CONDITIONS OF HEAVY PAIN       AND PROCESSES FOR PREPARING SAID AGENTS            Abstract of the Disclosure The  agents  for  the  treatment  of  conditions  of severe pain,  and especially of tumor pain and post-operative  pain,  consist  of  soft  gelatin  capsules containing from 30 to 50 parts by weight of ibuprofen and  from  1.5 to 4 parts by weight of codein and/or physiologically  compatible  salts  thereof,  partially dissolved and partially suspended in 68.5 to 46 parts by weight of polyoxyethylene-polyoxypropylene-diol or in a mixture comprising 30 to 76 parts by weight of polyoxy-ethylene-polyoxypropylene-diol or polyethyleneglycol or polypropyleneglycol and from 7 to 40 parts by weight of a physiologically compatible surfactant.
Patent CA-2027905-A1 (CA)
Inventor: CHESLOCK KENNETH B
IPC: B60C5/04
Filed: 1990-10-18
Abstract: ABSTRACT   The invention is an inflatable pneumatic innertube which is able to be placed on or taken off the wheel rim of a vehicle  without removing  the  rim  from the  vehicle.   The innertube is of a non-continuous form,  that is, it has two sealed  ends,  either  of  which  can  be  threaded  around  or through the structural components of the vehicle which hold the rim in place and thus be in a position to be placed on the rim.   After the threading, the two sealed ends may be held together by a mechanical holding device or system so that the innertube may be placed on the rim and in the outer tire by well known procedures.  The mechanical holding device or system  serves to cause the two sealed ends to bear one upon the other when the tube is inflated and thus eliminates any loss of the cushioning effect of the innertube.
Patent CA-2028524-A1 (CA)
Title: Method of and apparatus for reinforcing pipe
Inventor: FAWLEY NORMAN C
IPC: F16L55/17
Filed: 1990-10-25
Abstract: Reinforcing bands of high tensile strength filaments in a cur? resin matrix are in the shape of a coil having a plurality of elast? convolutions for reinforcing a weakened pipe. Areas of depressions ? the exterior surface of the pipe are filled with a load transfer fill? material and the bands are coiled around the pipe with adhesive holdi? an innermost convolution of the coil to the pipe and subseque? convolutions of the coil to adjacent convolutions. A plurality of ti? bands are placed in abutment with one another to cover the enti? weakened area of the pipe.
Patent CA-2029642-A1 (CA)
Title: Disulfide deodorant composition and method of deodorization
Inventor: CHATTERJEE RANJIT
IPC: A61L9/01
Filed: 1990-11-09
Abstract: DISULFIDE DEODORANT COMPOSITION AND METHOD OF DEODORIZATION                   ABSTRACT The  present  invention  provides  compositions comprising  a disulfide agent and a topical carrier for application to the skin i  in the axilla or crotch region or to articles of clothing which are worn  in the vicinity of such skin.   The present  invention further provides laundry compositions for application to articles of  clothing  worn  in  the  vicinity  of  the  skin.   The  present invention  further  provides   methods   of   using compositions containing a disulfide agent to control nonmicrobial malodor.  The present  invention  further  provides  methods  for  controlling malodors associated with a laundry cleaning product.      The applicable deodorant agents comprise disulfide compounds, wherein said compounds have the general formula:               R - S - S - R wherein each R is independently selected from the group consisting of substituted or unsubstituted five or six member cyclic rings containing at least one nitrogen atom within said ring, wherein said nitrogen atom is not bonded to an oxygen atom to form an N-oxide.
Patent CA-2031175-A1 (CA)
Title: Fiber optic gyro system using sample and hold units for wide angle accomodation
Inventor: ISHIGAMI MOTOHIRO
IPC: G01C19/72
Filed: 1990-11-29
Abstract: In a digital phase ramp type fiber optic gyro in which a digital biasing signal produced by a biasing signal generator is added to a digital ramp signal and the added output is converted by a D/A converter to an analog signal and is applied to an optical phase modulator to thereby cancel a Sagnac phase difference of right-handed light and left-handed light propagating through a looped optical transmission line and provide +.pi./2 rad. and -.pi./2 rad. bias phase differences alternately with each other, a first error signal corresponding to the difference between the outputs of an opto-electric converter when the +.pi./2 rad. and -.pi./2 rad. phase differences are provided, respectively, is detected from the output of the opto-electric converter for converting interference light of the right-handed and the left-handed light into an electric signal, and the step value of the digital ramp signal is determined, based on the first error signal.  An accumulator accumulates the step value and, when the accumulated output exceeds 2m.pi. (where m is a positive integer), causes an overflow and a sign signal indicating the sign of the overflow.  The digital ramp signal, which is the accumulated output, is converted by a D/A converter to an analog signal, which is provided to the optical phase modulator.  A second error signal detector detects, as a second error signal, the difference between the outputs of the opto-electric converter at an operating point when the overflow occurs and at the immediately preceding operating point.  Based on the overflow sign signal and a sign signal indicating the sign of the biasing signal at the time of occurrence of the overflow, a negative feedback control circuit determines which of +(4m-1)x.pi./2, -(4m-1)x.pi./2, -(4m+1)x.pi./2 and +(4m+1)x.pi./2 the operating at the time of occurrence of the overflow corresponds to, and multiplies the second error signal by a positive or negative sign dependent on the result of determination to create a negative feedback error signal, thereby controlling the conversion gain of the D/A converter.
Patent CA-2031205-A1 (CA)
Title: Apparatus for mechanically projecting devices through tubes
Inventor: VOWLES ROBERT W
IPC: B65H75/44
Filed: 1990-04-04
Abstract: (54) Title: APPARATUS FOR MECHANICALLY PROJECTING DEVICES THROUGH TUBES             (57) Abstract Apparatus is disclosed for projecting a stiffly flexible conduit or cable (3) through a bore of a tube to be cleaned, surveyed or other vise processed, said appar-atus comprising a drum (I) enabling the conduit or cable (3) to be stored wherein in a plurality of wound coils with a distal or free end of the conduit or cable (3) to be projected from the apparatus and into the bore of the tube to be cleaned, surveyed             or the like, the drum (I) being mounted for simultaneous axial and rotary motionand drive means (14, 15) being provided to effect the axial and rotary motion of the drum (1), restraining means (4, 5) being provided to prevent radial expansion of the wound coils on the drum (1).           + See back of ????
Patent CA-2031989-A1 (CA)
Title: System for hydraulically generating mechanical energy
Inventor: TREMBLAY JOHN
IPC: F03B17/04
Filed: 1990-12-11
Abstract: ABSTRACT OF THE DISCLOSURE              A system  for hydraulically generating mechanical energy comprises a chain device, a pair of rotatable wheels, and a reservoir containing liquid. The chain device defines a closed loop and comprises a series of spherical balls spaced apart from each other by a constant distance.  The wheels each define a rim surface on which the chain device is mounted in order to enable longitudinal movement thereof and to guide the same as it moves longitudinally.   These wheels have the same diameter, lie in a first common vertical plane, and rotate about respective rotation axes  both  lying  in  a  second  vertical  plane perpendicular to the first one.  The reservoir opens through a vertical tubular member mounted on the bottom wall of that reservoir, and the chain device includes  a  vertical  section  extending  into the reservoir and the tubular member.  In operation, the liquid in the reservoir produces by gravity a pressure on the balls when situated in the tubular member to cause longitudinal movement of the chain device and rotation of the wheels.  Mechanical energy is thereby generated.
Patent CA-2032534-A1 (CA)
Title: Motor Protection Apparatus
Inventor: BERNHARDT THOMAS J
IPC: H02H6/00
Filed: 1990-12-18
Abstract: Protection apparatus for an AC or DC motor (4) and a static drive (8), including a static inverter or a static drive (8).  An I2T signal is modified to take account of the frequency with which the switching elements of the drive (8) are switching their load current (at 42) and other factors.  The modified I2T signal is lowpass filtered in a filter whose cutoff frequency is also a function of the drive's switching frequency.  The resulting drive protection signal is compared with a predetermined threshold.    An I2T signal is also modified to take account of the speed of the motor and other factors, then filtered, to provide a motor-related signal (at 90).  Upon occurrence of an overload both the drive-related signal and the motor-related signal are independently capable of turning off the system by tripping a line contactor (6).
Patent CA-2032869-A1 (CA)
Inventor: KASAHARA KENICHI
IPC: H01S5/183
Filed: 1990-12-20
Abstract: A semiconductor layer which for reflecting an optical beam comprises a plurality of film pairs of narrow and wide band gap semiconductor films having a refractive index difference and narrower and wider band gaps.   An intermediate semiconductor film is interposed between the narrow and the wide band gap semiconductor films of each film pair and is made to have an intermediate film band gap which is varied so as to be equal to the narrower and the wider band gaps at its interfaces contiguous to the narrow and the wide band gap semiconductor films.  The narrow band gap semiconductor film, and a portion adjacent thereto in the intermediate semiconductor film, are called a first composite layer and are given a first total thickness which is approximately equal to a quarter of a first wavelength had by the optical beam in the first composite layer.  The wide band gap semiconductor film, and a remaining portion adjacent thereto in the intermediate semiconductor film, are called a second composite layer and are given a second total thickness which is approximately equal to a quarter of a second wavelength had by the optical beam in the second  composite  layer.    Preferably,  the  intermediate semiconductor film should have a film thickness which is substantially equal to a width which a potential barrier would  have  perpendicular  to  the  film  pairs  if  the intermediate  semiconductor  film  were  absent.     More preferably, absorption of the optical beam in the narrow and the wide band gap semiconductor films is taken into account on determining their thicknesses.
Patent CA-2033060-A1 (CA)
Inventor: NELSON GREGORY H
IPC: H05K3/38
Filed: 1990-04-25
Abstract: INTERCONNECT DEVICE AND METHOD OF MANUFACTURE THEREOF            Abstract of the Invention:     An interconnect device for electronic components, such as integrated circuits, multichip modules and the like, and the method of manufacture thereof are presented.  The interconnect device has two layers of circuitry, one for signal transmission and one for voltage plane.  The interconnect device is made by a processing on a stainless steel carrier plate to achieve high lead count capability with fine line widths and spacing, as well as precise registration layer to layer.  Laser drilling is used to define interconnect vias between signal and voltage (power or ground) plane layers.
Patent CA-2033217-A1 (CA)
Title: Use of two or more nested apertured endless belts with inverted arch bottom flights and generally horizontal top flights to recover bitumen and minerals
Inventor: KRUYER JAN
IPC: B01D33/04
Filed: 1990-12-27
Abstract: USE OF TWO OR MORE NESTED APERTURED ENDLESS BELTS WITH INVERTED ARCH BOTTOM FLIGHTS AND GENERALLY HORIZONTAL TOP           FLIGHTS TO RECOVER BITUMEN AND MINERALS            ABSTRACT           A  process  and  apparatus  for  the  recovery  of bitumen and bitumen wetted minerals from separating mixtures of bitumen, bitumen wetted minerals, water and water wetted minerals using two or more nested apertured endless belts on conveyor  supports that support these belts  to form top flights  approaching  generally  horizontal  paths  above separating mixture and bottom flights in the form of or approaching inverted arches immersed in separating mixtures. Bitumen separates from a mixture, is captured by and adheres to belt surfaces as  the mixtures  passes through bottom flight  apertures,  and  is  conveyed  to  corresponding  top flights where it falls off into receptacles and/or is washed off with water.  Mixture that has passed through apertures of the bottom flight of a first belt may be passed through apertures of the bottom flight of a second belt, nested with the  first  belt,  for  additional  bitumen  capture,  or  is removed.  Bitumen washed off with water from the top flights of a first and/or a second belt is removed for further processing or is passed to an inside enclosure that contains a third belt, nested with the first and/or second belts of the invention, to yield a final bitumen product that is low in  hydrophilic  minerals.    Alternately,  mixture  may  be introduced into the volume between the bottom flights of two nested belts and flow through the apertures of both bottom flights simultaneously.
Patent CA-2035422-A1 (CA)
Title: Sorter feeder system
Inventor: JAMES WAYNE R
IPC: B65G47/244
Filed: 1991-01-31
Abstract: SORTER FEEDER SYSTEM              Abstract of the Disclosure A sorter feeder system for automatically singulating, orienting, accelerating and conveying an article in the form of commercial packages (boxes, cartons or crates of square or rectangular shape) onto a moving tray or slat sorter conveyor.          The article is oriented such that its shortest dimension will be parallel to the direction of travel of the sorter conveyor.          The system comprises an intermittently operated feeder conveyor which delivers articles to an elevated roller lift table having continuously running rollers which convey the article to a continuously running belt driven side guide which then acts in conjunction with the rollers to urge the article against a swing blade stop positioned at substantially right angle to the side guide.  The article is then conveyed from the roller conveyor area to a tray on the sorter conveyor by simultaneously swinging the blade stop out of its interfering position and dropping the roller lift table such that said article is now in contact with a continuously running multistrand induction belt conveyor extending to the sorter conveyor. The velocity of the induction belts and the timing of the deposit of the article on the belts are synchronized with an empty tray signal positioned on the continuously running sorter conveyor, so that the article is delivered  to  a  designate  tray,  and  in  a  predetermined orientation.